Results 61 to 70 of about 344 (138)

B0 and Bs0 decays into J/ψ f0(980) and J/ψ f0(500) and the nature of the scalar resonances

Physics Letters B, 2014
We describe the B0 and Bs0 decays into J/ψ f0(500) and J/ψ f0(980) by taking into account the dominant process for the weak decay of B0 and Bs0 into J/ψ and a qq¯ component.
W.H. Liang, E. Oset
doaj   +1 more source

Branching fractions of semileptonic D and $$D_s$$ D s decays from the covariant light-front quark model

European Physical Journal C: Particles and Fields, 2017
Based on the predictions of the relevant form factors from the covariant light-front quark model, we show the branching fractions for the $$D (D_s) \rightarrow (P,\,S,\,V,\,A)\,\ell \nu _\ell $$ D ( D s ) → ( P , S , V , A ) ℓ ν ℓ ( $$\ell =e$$ ℓ = e or $
Hai-Yang Cheng, Xian-Wei Kang
doaj   +1 more source

Scrutinizing Dark-Matter Scenarios with B → (K,$K^{\ast }$)$\overline{\mathit{\nu }}$ν Decays

Universe
Conceivable explanations of Belle-II measurements of a (surprising) excess of missing energy decays of the B meson to the K meson not covered by standard model neutrino–antineutrino pairs might be offered by additional contributions of dark matter ...
Alexander Berezhnoy, Wolfgang Lucha, Dmitri Melikhov   +2 more
doaj   +1 more source

Pseudoscalar Mesons Scattering off D*-mesons with Chiral Perturbation Theory

EPJ Web of Conferences, 2012
We have systematically calculated the s-wave pseudoscalar mesons and D*- mesons scattering lengths to the third order with chiral perturbation theory, which will be helpful to reveal their strong interaction.
Zhu Shi-Lin, Liu Xiang, Liu Yan-Rui, Liu Zhan-Wei   +3 more
doaj   +1 more source

Study of χc1,2 decays to PPP via light meson resonances

Physics Letters B
The three-body decays of charmonium states provide a valuable laboratory for probing non-perturbative QCD dynamics and investigating light meson resonances. Three-body decays χc1,2 → P1P2P3 are studied in this work (P denotes the light pseudoscalar meson)
Bo Lan, Jie Zhu, Jin-Huan Sheng, Yuan-Guo Xu, Ru-Min Wang   +4 more
doaj   +1 more source

Chiral Symmetry restoration from the hadronic regime

EPJ Web of Conferences, 2017
We discuss recent advances on QCD chiral symmetry restoration at finite temperature, within the theoretical framework of Effective Theories. U(3) Ward Identities are derived between pseudoscalar susceptibilities and quark condensates, allowing to explain
Gómez Nicola Angel, Cortés Santiago, Morales John, Ruiz de Elvira Jacobo, Andrés Ricardo Torres   +4 more
doaj   +1 more source

Holographic QCD and the muon anomalous magnetic moment. [PDF]

Eur Phys J C Part Fields, 2021
Leutgeb J, Mager J, Rebhan A.
europepmc   +1 more source

Highlights of light meson spectroscopy at the BESIII experiment. [PDF]

Natl Sci Rev, 2021
Jin S, Shen X.
europepmc   +1 more source

The role of strangeness in chiral and U ( 1 ) A restoration. [PDF]

Eur Phys J C Part Fields, 2021
Gómez Nicola A, Ruiz de Elvira J, Vioque-Rodríguez A, Álvarez-Herrero D.   +3 more
europepmc   +1 more source

Derivation of Meson Masses in SU(3) and SU(4) Extended Linear Sigma Model at Finite Temperature

Particles
The present study focused on the mesonic potential contributions to the Lagrangian of the extended linear sigma model (eLSM) for scalar and pseudoscalar meson fields across various quark flavors.
Abdel Nasser Tawfik, Azar I. Ahmadov, Alexandra Friesen, Yuriy Kalinovsky, Alexey Aparin, Mahmoud Hanafy   +5 more
doaj   +1 more source